GPC Price Trends 2026: What Graphitized Petroleum Coke Really Costs Now

Quick answer: The price of graphitized petroleum coke (GPC) has spent 2026 in a slow grind downward on the raw-material side while export costs have climbed - a squeeze that defines the current market. China's green petroleum coke benchmark stood at about RMB 3,239 per tonne on 9 September 2026, down 0.21% from the start of the month, while domestic graphitized carburizer prices for C>98.5% material ran at roughly RMB 3,700–3,780/t in mid-July, off about 6% over three months. On the export side, FOB offers for standard 98.5% GPC cluster around USD 460–615 per tonne, but the cancellation of China's export tax rebate on 1 April 2026 and dry-bulk freight rates up sharply - more than 35% year-to-date on the Shanghai–Persian Gulf route - have pushed landed CFR costs up 8–12% even as FOB prices drifted lower.

First, understand the cost stack - it explains everything

GPC is not a commodity with a single exchange price. It is a manufactured product whose cost stacks up in four layers, and knowing the stack tells you where quotes can flex and where they cannot:

• 🛢️ Green petroleum coke - the refinery feedstock. This is the volatile layer: quotes from individual Shandong refineries in September 2026 ranged from about RMB 1,930/t to RMB 4,700/t depending on sulfur grade and coke quality. Benchmark movements pass through to GPC with a lag of weeks.
• 🔥 Calcination - heating to ~1,300°C drives off volatiles and moisture. Fuel and handling costs are relatively stable per tonne.
• ⚡ Graphitization - the defining step. The material is held at 2,500–3,000°C in electric resistance furnaces for days. This makes electricity the single biggest conversion cost in GPC, which is why serious graphitization capacity sits in Inner Mongolia, Gansu and Xinjiang, where industrial power is cheaper than in coastal provinces.
• 📦 Screening, packing, and freight - crushing to 1–5 mm or other cuts, bagging or jumbo-packing, and the ocean leg. In 2026 this last layer grew from an afterthought into a headline number.

The practical consequence: when green coke softens by RMB 100/t, a GPC quote does not fall RMB 100 - the graphitization electricity cost and the freight largely absorb or offset the move. Conversely, when power tariffs or freight spike, FOB quotes move up even in a soft raw-material market. That is more or less the story of 2026.

The 2026 timeline, quarter by quarter

🗓️ Q1 - calm before the policy change. Green coke prices traded sideways in the low-to-mid RMB 3,000s. Exporters shipped with the 13% export rebate still in place, and GPC export pricing was broadly stable. Demand from overseas foundries was steady without being exciting.

🗓️ Q2 - the rebate disappears. On 1 April 2026 the revised export tax rebate policy took effect, cancelling rebates for 248 categories including graphite carbon materials. For a product that had relied on thin margins and volume, this was a structural cost increase on every exported tonne. Many producers initially held FOB quotes and absorbed the hit; others quietly repriced or reoriented toward the domestic market.

🗓️ Q3 - freight takes over. Middle East geopolitical tension restricted strait transits, and dry-bulk rates climbed. By September, the Shanghai–Persian Gulf route was up more than 35% year-to-date, war-risk surcharges appeared on many bookings, and average schedules stretched by 7–12 days. Combined freight and insurance added USD 15–25/t month-on-month, lifting CFR petroleum coke prices 8–12% even as FOB China GPC offers drifted down about 1% over 90 days. Meanwhile domestic graphitized carburizer prices slid roughly 6% over three months as anode-material graphitization plants ran hard and kept supply ample.

September 2026 in detail: two markets moving apart

Right now the GPC market is really two markets. The domestic Chinese carburizer market is loose - green coke benchmarks are down slightly, refiner quotes were being trimmed by RMB 40–50/t through the first week of September, and graphitized carburizer sits well below its spring levels. The export market is tight - rebate loss plus freight plus surcharges mean the CFR price a Middle Eastern or European buyer pays has risen even though the FOB price a Chinese supplier quotes has not.

For buyers, that divergence is an opportunity. Suppliers competing for export orders in a soft domestic market have room to negotiate on the FOB component - they would rather hold volume than lose the order entirely - while the freight component is largely out of everyone's hands. Focusing your negotiation on the goods, not the freight line, is where the realistic savings are.

What actually drives GPC prices: five factors that matter

🪙 1. Green coke quality spread. Low-sulfur green coke commands a solid premium over mid/high-sulfur material, and the spread between refineries is enormous - RMB 1,930 to 4,700/t in September quotes. Suppliers holding low-sulfur feedstock will not discount deeply.

⚡ 2. Electricity costs at the graphitization furnace. A furnace campaign at 2,500°C+ consumes enormous power. Regional power pricing and availability (Inner Mongolia and Gansu versus coastal provinces) can shift conversion cost by double-digit percentages.

🏗️ 3. Steel and foundry margins. EAF steel mills and foundries buy GPC on rigid demand but push back hard when their own margins compress. Weak steel profitability in 2026 has capped how much price increase the market can absorb - a key reason domestic carburizer prices drifted down rather than up despite cost pressure.

🔋 4. Anode-material demand for graphitization capacity. The same furnaces that graphitize petroleum coke also serve the battery anode supply chain. When anode scrap and anode-material graphitization run at high utilization (as they have through 2026), GPC supply stays ample but furnace scheduling tightens, and custom sizes or small lots face longer lead times.

🚢 5. Freight and geopolitics. The single biggest mover of landed cost in 2026. Route-specific surcharges, war-risk premiums, and port congestion can swing a CFR quote by more than the entire negotiated FOB discount.

Frequently Asked Questions

1. What is the current price of graphitized petroleum coke?

As of early September 2026, domestic Chinese graphitized petroleum coke carburizer (C>98.5%, 1–5 mm) trades around RMB 3,700–3,780/t including VAT, while export offers for standard 98.5% material cluster around USD 460–500/t FOB China, with high-purity 99%+ grades around USD 529–615/t. Landed CFR prices run 8–12% higher than earlier in the year because of freight and surcharges. Exact quotes vary with sulfur grade, particle size, packing and volume.

2. Why did GPC export prices rise in 2026 even though raw material prices fell?

Two cost layers overwhelmed the raw-material decline: China cancelled the export tax rebate for graphite carbon materials effective 1 April 2026, and dry-bulk freight on key routes rose sharply - over 35% year-to-date on Shanghai–Persian Gulf - with added war-risk surcharges. FOB prices actually drifted slightly lower; it is the landed cost that climbed.

3. How does the green petroleum coke price affect GPC quotes?

Green coke is the feedstock, so its price leads GPC with a lag of roughly two to six weeks. But the pass-through is partial: graphitization electricity and freight together make up a large share of the final cost, so a RMB 100/t green-coke move typically shifts GPC quotes by noticeably less than RMB 100/t.

4. Is there a difference in price between 98.5% and 99.5% fixed carbon GPC?

Yes. Higher fixed carbon grades command a premium both because the feedstock is cleaner and because yield losses are greater in production. The more useful comparison is price per kilogram of usable carbon delivered to your furnace - a slightly more expensive 99.5% material can actually be cheaper per unit of carbon picked up once ash, moisture and volatility are accounted for.

5. Are GPC prices negotiable for bulk orders?

Meaningfully so on the FOB component, especially now. With the domestic Chinese market loose and export volumes harder to win after the rebate cancellation, suppliers holding inventory generally prefer to negotiate rather than lose an order. Freight and surcharges are far less negotiable. Volume commitments, flexible shipment windows and simpler specifications all improve your position.

6. Should I buy now or wait for prices to fall?

We cannot time the market for you. What the current structure suggests: the goods-side price is range-bound with soft domestic pressure, while the freight side is the volatile line. Many buyers in 2026 have split orders - covering near-term needs at current FOB levels while leaving later tranches unpriced - and a few have shifted volume toward suppliers with better freight terms rather than the lowest headline FOB price.